Bob Rathbone on X: "This is smallest radio that I have yet built. It was built using a Raspberry Pi Zero, an IQAudio Cosmic Controller (3 buttons, rotary encoder and OLED display)
![Amazon.com: AURSINC MMDVM Hotspot Spot Radio Station WiFi Digital Voice Modem Work Contained with Raspberry Pi Zero W with Firmware V4.1.5 UHF Supports C4FM YSF POCSAG NXDN DSTAR P25 DMR : Electronics Amazon.com: AURSINC MMDVM Hotspot Spot Radio Station WiFi Digital Voice Modem Work Contained with Raspberry Pi Zero W with Firmware V4.1.5 UHF Supports C4FM YSF POCSAG NXDN DSTAR P25 DMR : Electronics](https://m.media-amazon.com/images/I/61v3hUNa1vL._AC_UF894,1000_QL80_.jpg)
Amazon.com: AURSINC MMDVM Hotspot Spot Radio Station WiFi Digital Voice Modem Work Contained with Raspberry Pi Zero W with Firmware V4.1.5 UHF Supports C4FM YSF POCSAG NXDN DSTAR P25 DMR : Electronics
![Amazon.com: Zebra ZRZ-1S case for Raspberry Pi Zero/Zero W & ZUMspot MMDVM ~ (2 Tops Included) Wood : Electronics Amazon.com: Zebra ZRZ-1S case for Raspberry Pi Zero/Zero W & ZUMspot MMDVM ~ (2 Tops Included) Wood : Electronics](https://m.media-amazon.com/images/I/71LzSwiuw2L.jpg)
Amazon.com: Zebra ZRZ-1S case for Raspberry Pi Zero/Zero W & ZUMspot MMDVM ~ (2 Tops Included) Wood : Electronics
![Setting up Packet Radio on a Raspberry Pi (5 thru Zero-W) running Raspberry Pi OS Bookworm, Bullseye, Buster, Stretch or Jessie Setting up Packet Radio on a Raspberry Pi (5 thru Zero-W) running Raspberry Pi OS Bookworm, Bullseye, Buster, Stretch or Jessie](https://www.trinityos.com/HAM/CentosDigitalModes/RPi/rpi4-packetrig-overview-2.jpg)